I just solved my night light need a couple of weeks ago. In case I'm caught in the dark (most likely) in the Round The Island Race in Ft. Walton I have recently spent way too much time deciding on a compact but very bright and portable light for illuminating the sail and piercing the night with a beam of light suitable for reaching a near shore or channel marker. My answer is the "Super SabreLite-Submersible" flashlight by Pelican Products. (I'm not affiliated with the company or any supplier.) Submersible to 500 ft., xenon beam, made from some kind of indestructible plastic. Runs on three "C" batts. I don't know the candlepower but this light will blind squirrels at an incredible distance. It's pricey at about $35 but it's well worth it. I don't usually gush about marine products but for a beachcat sailor this solved my problem.
There is one guarantee caveat that made us laugh: "The above gurantee does not cover sharkbite, bear attack or children under 5". Those two legged little ankle biters must be killers.